Make it Impossible for People NOT to Buy

If you offer a product or service, this may or may not work in your case, but it’s something to consider. If it is applicable and you start doing it, you can expect a big boost in sales.
Vacuum cleaner salesmen used to (or perhaps still do) show grossly enlarged photos of dust mites, explaining that there are millions of these critters in your bed feasting on dead skin and defecating all over the top and inside of the mattress. (Sorry, that was a nasty visual, wasn’t it?)
Then the vacuum cleaner salesman would tell them how his vacuum was the one and only solution to sucking those little bad boys out of there, as well as removing pounds of dead skin and more pounds of dust mite feces. (Again, apologies for that picture.)
Next, the salesman would ask to be taken to the bedroom, where he would ask the man which side he slept on. This is the side of the mattress the salesman would vacuum, purposely NOT vacuuming the woman’s side.
And another sale was made. Why? Because that lady did NOT want to sleep on dust mites and dust mite feces that night. Plus, if she didn’t get the vacuum them she was going to sleep on her husband’s side and her husband could sleep on the couch.
In another far removed business, a shoe shine man with a stand in a hotel lobby was hurting for business. So he put up a sign that read, “One shoe shined FREE.” There after he was inundated with business.
Do you see where this is going? Depending on what you sell, it’s entirely possible that you can make more money by giving away your service – or even your product – in a limited quantity.
After all, who’s going to walk around with just ONE shoe shined?
If you are a graphic artist, for example, you could give away one header. Of course if they want the matching footer, ebook cover, etc. then you’ll be happy to do that for them for a charge.
If you sell car wax, you could give away enough to do just the hood.
If you do remote virus removal on computers, remove one virus or malware for free. And so forth.
By giving away a portion of your product or service, you can effectively make it extremely difficult for the customer NOT to get the rest of your product or service.